The other day I came down to a light and so I took it out of gear, put it into neutral and as I was coming down to like 10 kmh the light went green and so I put the car back into first but it seemed like it didn't want to go into first. I was told you should only put the car into first when you're completely stopped. I've had several times that I put the car back into first as the car was still rolling around 5 kmh. My question is, do I put it into first next time at around 5-10 kmh rolling or throw it into second or third? I've had times that I threw it into third gear while at 20 kmh and it went fine. What should I do in this scenario?